Curriculum
Course: Igcse Physics
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Curriculum

Igcse Physics

1. Motion, Forces and Energy

0/161 Dr Dabour Hub Science Diagram and Course Material

2. Thermal Physics

0/75 Dr Dabour Hub Science Diagram and Course Material

3. Waves

0/77 Dr Dabour Hub Science Diagram and Course Material

4. Electricity and Magnetism

0/119 Dr Dabour Hub Science Diagram and Course Material

5. Nuclear Physics

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6. Space Physics

0/47 Dr Dabour Hub Science Diagram and Course Material
Quiz

1.4.7 Friction – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
Friction always acts
in the direction of motion
at right angles to motion
opposite to the motion or tendency to move
upward
2.
Which would reduce friction between two surfaces?
A lubricant
Rougher surfaces
A heavier load
A rubber coating
3.
A 20 kg box is pushed with 70 N against friction of 50 N. Its acceleration is
3.5 m/s2
6.0 m/s2
0.5 m/s2
1.0 m/s2
4.
A car moves at constant speed with a driving force of 700 N. The total resistive force is
less than 700 N
700 N
more than 700 N
zero
5.
Heat is produced when you rub your hands because
kinetic energy is transferred to thermal energy by friction
gravity acts
air pressure rises
mass increases
6.
Air resistance on a falling object increases as
its mass decreases
it gets hotter
its speed increases
it gets lighter
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Part of 1. Motion, Forces and Energy — see every lesson and quiz in this unit.
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